Kind of agree with Andy. I’m not sure of relative failure rates, but if alu frame fails it’s a much lower loss. Steel frames are fairly easy to repair. If a ti frame fails (and they do as polenty of threads on here show) it’s an expensive and specialist repair. Hence I’d want a longer warranty or (as On-one) a cheap intial cost.
Didn’t someoen on here get a Ti frame repaired and it turned out to be a lot less than people imagined (about £120 to re-attach his headtube rings a bell)? And 2-3 years is still a fair amount of time, long enough for any manufacturig defects to show up, which is what a warrenty covers, a component reaching it’s fatigue limit or being stuffed into a tree wouldnt be covered under any warenty (although some places might offer some good will).
And if the price stays as it is then it’s not much more (and sometimes less) than some comparable aluminium frames anyway (SC highball £599, canfield yelli £850, titus fireline £699).